Siegel, Hardo
Patent Applications and Registrations
Patent applications and USPTO patent grants for Siegel, Hardo.The latest application filed is for "heterogeneously catalyzed reactive distillation in the suspension mode".
- Siegel, Hardo - Speyer DE
- Siegel; Hardo - Ludwigshafen DE
| Patent | Date |
|---|---|
| Heterogeneously catalyzed reactive distillation in the suspension mode App 20040050680 - Miller, Christian ; et al. | 2004-03-18 |
| (2R)-1-(aryloxy)-3-(butyryloxy)-2-propanols Grant 5,208,333 - Paul , et al. May 4, 1 | 1993-05-04 |
| Preparation of pyrroles from dialkoxytetrahydrofurans Grant 4,906,758 - Hoelderich , et al. March 6, 1 | 1990-03-06 |
| Acylation of aromatics Grant 4,895,984 - Eggersdorfer , et al. January 23, 1 | 1990-01-23 |
| Novel benzaldehyde dialkyl acetals and preparation and use thereof Grant 4,820,389 - Degner , et al. April 11, 1 | 1989-04-11 |
| Substituted 4-methyl-4,7-dihydro-1,3-dioxepins, their preparation and their use as scents Grant 4,784,985 - Gramlich , et al. November 15, 1 | 1988-11-15 |
| Preparation of optically pure D- and L- lactic acid Grant 4,769,329 - Cooper , et al. September 6, 1 | 1988-09-06 |
| Substituted 5-formyl-1,3-dioxepans Grant 4,761,489 - Gramltch , et al. August 2, 1 | 1988-08-02 |
| Preparation of benzaldehyde dialkyl acetals Grant 4,539,081 - Degner , et al. September 3, 1 | 1985-09-03 |
| 4-Tert.-butoxyphenylglycinonitrile and the preparation of D-(-)- and L-(+)-4-hydroxyphenylglycine Grant 4,350,641 - Degner , et al. September 21, 1 | 1982-09-21 |
| 4-Substituted benzaldehyde-dialkylacetal Grant 4,284,825 - Degner , et al. August 18, 1 | 1981-08-18 |
| Phenylpropanals Grant 4,113,781 - Aquila , et al. September 12, 1 | 1978-09-12 |
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